Although the first two sentences seem to say that you are busy in vain, you also know that you are ambitious.
Artistry can be regarded as a difficulty, and there is no difficulty. Why is it not difficult? The last two sentences explain.
The last two sentences say that if you do it down-to-earth and know your purpose, there will be no problem.
Maybe you are a little upset recently, so the first two sentences are a little empty.
Therefore, you must stick to your beliefs, get rid of irritability and be sure to succeed.